Valve-truing tool.



A. s. 1100mm. VALVE Tnupm TOOL. v AP PLIOATION FILED FEB. 27, 1Bb7.

926,957. Patented July 6, 1 09.

xmm V mu IJIII l2 Albert v y- 3 TENT onerou- ALBERT s. NOONAN, OF none,NEW YORK.

VALVE-TRUING FOOL.

To all whom it may concern:

Be it known that I, ALBERT S. NOONAN, a citizen of the United States,and. a resident of'Rome, in the county of Oneida and State of New York,have invented an Improve ment, inValve-Truing Tools, otwhich thefollowing description, in connection with the accompanying drawings, isa specification, like numerals on senting like parts.

lfhis'invention relates to devices intended for truing valves, apparentthat the d in other relations as,

valve seats or other p in use.

I n the present embodiment of the device, it is represented as a tool orimplement though it is understood that I am not to be limited thereto,save as expressly so stated in the claims.

In order that the principles of the inventlon may be made clearlyapparent, I have illustrated a single type or embodiment of theinvention in the accompanyingdrawings, whereinthe drawlngs repreprimarily although it is evice may be employed for example, in truingarts that become Worn Figure 1 isa side elevation. of one form of; toolor implement adapted to support a valve and true the same; Fiq. 2 isavertical longitudinal section through the tool, parts thereof beingshomiin section and the valve being re nesented as positioned for truing;Fig. 3 is a vertical transverse section upon the irregula: line 3 3 ofFig. '1 looking to the left, the blade being shown in elevation; 4 is avertical section upon the line 4-4 of Fig. 1 looking to the left, thevalve head being shown in elevation; Fig. 5 is a vertical transversesection upon the line 5-5 of Fig. 1 looking to the left, and Fig. 6 is avertical transverse section upon the line 6-6 of Fig. 1 looking to theleft.

Great difiiculty has been heretofore experienced in truing valves thatin action lave become Worn as by being cireumfcr entially scored upon aface thereof by reason of impact against the valve seat. While thisdiliiculty has been experienced in many different types of valvesoperating in. dilfer ent relations, it is well known that the admissionand exhaust valves of a gas engine used in an automobile or olscwl Wornbcc ause of their rapid and constant Specification of Letters Patent.Application filed February 27, 1907. Serial No. 359,69

vmaterial or workmanship.

101%, become f movement :igaiusl their seats. if the type Patented July6,1909.

of valve be one havingja beveledface adapted to coact with acorrespondingly shaped seat terminating at a'sharp edge, the re-" peatedreciprocationsofthe valve score the latter circumferentially of thebeveled face, so that the valve is no longer truly seated and theoperation of the engine is seriously impaired. l

Valves having; fiat faces adapted to co-act with a correspondinglyshaped scat'become Worn in use. Not only in the forms of valvesenumerated but in many other types of valves of varying shapes, the.valveor the valve seat becomes Worn and out of true. l\;loreover, thevalve or its seat frequently becomes pitted by the action of the hotgases -of a gas engine, or such pitting may originally have existed inthe Qmetal owing to defective Attempts have heretofore been made torepair valves that have become Worn in this manneras, for cx- 7-5 ample,by filing the valve or by grinding the valve in its seat, using for thelatter purpose an emery paste or the like, or by turning the valve in alathe while holding the file against the same. Each of these methods isopen to serious objections; In filing a valve, it is extremely difficultif not impossible to operate upon it evenly, and in grinding the valvein its sent, using an emery paste, such paste Works serious injury if itfinds its way into the mechanism of the engine.

- It is the object of my invention to provide a means, hereinembodied-as an imple ment or tool whereby a va lve or an. analogous partmay be readilv. amicasilyj trued. By my invention the live ground. orturned evenly or synnnct y as will be readily understood fromdhodetailed description thereof. Referring to the specific embodiment ofthe invention herein selected for illustration, the bed or frame of thetool is represented at 1. It is apparent that the fraincniay be formedin any suitable manner. lnasi'i'iuch as the device ma be convenientlhandled when embodied in a loolor implement, l have herein shown the bedorirannt: as an elongated metallic inembcni'ormcd as a, tooltnansgortinn' and Work supporting lm-i'rinrvinn thereon a bracket 1.that may he lon'g'l tudinally adjusted upon the frame and-secured in (hedesired position. ol

adjustment by a clamp screw 1%. Prid'orz-iblv last upon the frame as atone end thereof is a bracket 4 herein shown as aiding to support thevalve that is to be operated upon am the blade or cutting tool hereinrepresented at 5 as pivotally mounted upon a pin 6 in the bracket 4, thelatter having a set screw 7 serving as a stop to maintain the blade orcutting tool in determined position.

It is apparent that a blade or cutting tool of any desired formationmay-be su ported in any suitable manner, but preferab y so as to beadjustable with respect to the head of the valve or other part that isto be operated upon thereby.

If desired, a bracket 8 may be secured to the body or frame, it beingrepresented as adjustably secured thereto by means of a clamp screw 9.

Preferably, the brackets 2 and 4 are provided with V-shaped seats 10 and11 as represented in Figs. 3 and 5 respectively, and with suitablemeans, herein represented as screw threaded o enings, whereby holdingmembers 12 an 13 may be positioned against the stern of the valve whenthe screws 14 and 15 are sufficiently tightened. It is apparent that anysuitable means may be employed to co-act with a suitably formed faceupon the brackets 2 and 4 to hold the valve stem in position, theconstruction herein re resented being found simple and effective or thepurpose.

The bracket 8 is herein represented as having a screw threaded openingextending therethrough, in which is disposed a screw threaded belt orscrew 16 herein shown as disposed arallel with the axis of the body orframe an acting as an adjustable stop to determine the position of thevalve that is to be operated upon.

In Figs. 1 and 2, the valve stem is represented at 17 as ositioned inthe brackets 2 and 4 and held t iercin by the holding members 12 and 13,the valve head 18 being reprcsentedas beveled and as contacting with theblade 5 which may have a slight beveled edge as represented in Figs. 3and 4.

Relative movement may be imparted to the valve and the blade or cuttingtool in an suitable manner. Herein such movement is one of rotation andthe relative movement is obtained by rotation of the valve, the bladebeing held stationary. I It is apparent that within the scope of myinvention, various modifications and alterations may be made so as topresent a relatively movable blade and valve or surface to be operatedupon.

' he valve stem 17 is not so tightly held in the brackets 2 and 4 as toprevent rotation thereof, the screws 14 and 15 being merely tightenedsufficiently to prevent loose motion between the valve head and theblade or cutting tool 5.

The valve may be rotated in any suitable manner as by means of a screwdriver indicated at 19 in Fig.1 en 'a mg a 'slot 20 in the head of .thevalve, or t e valve be shaped for that purpose it may be rotated by awrench or the like.

The body or frame 1, however ormed, may be supported when the device isoperated, in any, suitable manner. It may eonveniently be held in a viseor ma be held in one hand while the other is crap oyed in retating thevalve. If in rotating the valve it be evenly pressed against the blade5, 1t is ap arent that a symmetrical truing of the va ve results. Byadjustment of the set screw 16, the valve head may be made to press moreor less firmly against the cutting lade 5. Moreover by the employment ofa stop as 16, each of a series of valves may be ground equally so thatthey may properly work in unison.

While the blade 5 is herein represented as having a straight edge, it isapparent that it may be shaped or formed as desired to conform to one ormore faces of the valve or other part that is to be trued or ground.

It is a parent that modifications may be made wit in the scope oftheinvention in order to suit it to the requirements of the work which isherein typified as a valve.

Having thus described one type or embodiment of my invention, I desireit to be understood that although specific terms are employed, they areused in a descriptive an generic sense and not for purposes oflimitation, the sec e of the invention being set forth in the fol owingclaims.

Claims- I. A readily portable tool for truing valves or the like,comprising a work-supporting bar 1, a plurality of brackets mounted uponand carried b said bar and having free ends provided wit valve-stemseats and a cutter supported by one of said brackets.

2. A rea ily portable tool for truing valves or the like, comprising awork-supporting bar 1, a plurality of brackets mounted upon and carriedby said bar and having free ends provided with valve stem seats, and acutter positioned and en ported by said bar adjacent one end thereoll 11A tool for truing valves or the like comprising a tool transporting andwork supporting bar 1, a plurality of s aced valve stem-supportingabrackets attae ed to said bar, a cutter supported by said bar to actuppn the valve or other device, a stem w ereoi 18 supported by saidbrackets, and an abutment suiported by the bar to rece1ve the end t rustof the device act-ed upon.

4. A readily portable tool for truing valves or the like, comprising awork-supporting bar 1, a plurality of brackets mounted upon and carriedby said bar and having free ends provided with valve-stem seats 130 anda Cutter pivotally supported upon the forward bracket, and havlng meansto ad-.

Y just its angle of inclinationif cured thereon, a blade morinted' upononefirst bracket, adjustable members carried by said brackets andmovable toward and 5. A tool for truingvalves or the like,

comprising an elongated, readily )ortable frame or body, a plurality oibrac ets seadjustably secured to the frame and having a valve stem seatalincd with that of the from the valve stem seats, and adapted toContact with said valve stem there/b5 to maintain the valve in operativerelation. to said blade but permit-ting manual rotation of said valve,wherebvtruing thereof is ol'- feeted.

In testimony whereof, I have signed my name to this specification, inthe presence of two'subscribing witnesses.

ALBERT S. NOOXAN.

\Vitnesses: EDWARD E. SMITH,

RoBER'r J.. Noomx.

